CN104944538A - Pseudomonas aeruginosa and sphingomonas paucimobilis inactivating method based on water supply network growth ring - Google Patents
Pseudomonas aeruginosa and sphingomonas paucimobilis inactivating method based on water supply network growth ring Download PDFInfo
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- CN104944538A CN104944538A CN201510397510.1A CN201510397510A CN104944538A CN 104944538 A CN104944538 A CN 104944538A CN 201510397510 A CN201510397510 A CN 201510397510A CN 104944538 A CN104944538 A CN 104944538A
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- pseudomonas aeruginosa
- water supply
- feooh
- sphingomonas paucimobilis
- alpha
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Abstract
The invention discloses a pseudomonas aeruginosa and sphingomonas paucimobilis inactivating method based on a water supply network growth ring and relates to a method for inactivating two kinds of pathogenic bacteria, namely pseudomonas aeruginosa and sphingomonas paucimobilis in drinking water. The method aims to solve the problem that an existing method for inactivating pseudomonas aeruginosa and sphingomonas paucimobilis in drinking water is poor in effect. The method comprises the single step of adding alpha-FeOOH and H2O2 to a clean water reservoir of a city water supply plant. According to the method, the cost of H2O2 is low, alpha-FeOOH is cheap and easy to obtain, is a main constituent of the growth ring and can exist continuously in a city water supply network after being added once, only H2O2 needs to be added in the later period, the requirement for equipment is simple, energy consumption is low, and investment and operation cost are reduced. A Fenton-like body formed by alpha-FeOOH and H2O2 can inactivate pseudomonas aeruginosa and sphingomonas paucimobilis existing in filtered water remarkably.
Description
Technical field
The present invention relates to the ablation method of two kinds of pathogenic bacterium Pseudomonas aeruginosas and sphingomonas paucimobilis in tap water.
Background technology
Pseudomonas aeruginosa is a kind of common conditioned pathogen, the infection at the positions such as respiratory tract traumatic surface can be caused when resistance of human body declines, multiple pathogenic substance can be produced, its exotoxin A produced is the important even lethality material that causes a disease, and can cause local or general disease after it enters sensitive cells.And Pseudomonas aeruginosa has very strong resistance, widely distributed in water, growth conditions requires low, and fecundity is strong, has very strong resistibility, be difficult to kill completely to sterilizing agent, drying, UV-lamp chemical factors.
Sphingomonas paucimobilis is conditioned pathogen, sphingomonas paucimobilis infects except heating, also can show the related symptoms such as pneumonia, endophthalmitis, urinary tract infections, meningitis, peritonitis, osteomyelitis, suppurative arthritis, lung empyema, splenic abscess, urinary system infection, biliary tract infection, microbemia, septic shock, septic pulmonary embolism that this bacterium causes.The bacterium that educational circles generally can survive under residual chlorine concentration higher strip part is called " chlorine-resistant bacterium ".Sphingomonas paucimobilis is " chlorine-resistant bacterium ", can survive under the condition that residual chlorine concentration is higher.
At present, the sterilization method of tap water can not effectively kill Pseudomonas aeruginosa and sphingomonas paucimobilis, normal generation tap water is subject to the event that these two kinds of pathogenic bacterium pollute, and therefore needs a kind of rationally, effective pathogenic bacterium ablation method of research and development, ensures urbanite water consumption safety.
Summary of the invention
The present invention seeks in order to solve the green pseudomonas of existing copper in drinking water and sphingomonas paucimobilis inactivating efficacy difference problem, thus provide a kind of based on the Pseudomonas aeruginosa of water supply network growth ring and the ablation method of sphingomonas paucimobilis.
Based on the Pseudomonas aeruginosa of water supply network growth ring and the ablation method of sphingomonas paucimobilis, implementation procedure is as follows:
Alpha-feooh and H is added in the clean water basin of Urban water supply factory
2o
2, add alpha-feooh that rear concentration is 0.01 ~ 0.05mol/L and mass concentration is the H of 0.1% ~ 0.5%
2o
2, namely complete the deactivation of Pseudomonas aeruginosa based on water supply network growth ring and sphingomonas paucimobilis.
H in the present invention
2o
2with low cost, alpha-feooh material is cheaply easy to get, and is growth ring main component, after once adding, can in city water-supply pipe network a large amount of sustainable existence, the later stage only need add H
2o
2, simple to equipment requirements, energy waste is low, saves and drops into and running cost.Alpha-feooh and H
2o
2the Fenton-like sterilisation effect formed is good, and does not produce the disinfection byproduct (DBP) such as haloform, halogen acetic acid, enhances drinking water safety.Alpha-feooh and H
2o
2the class Fenton body formed has obvious deactivation for the Pseudomonas aeruginosa existed in water after filter and sphingomonas paucimobilis, wherein the inactivation ratio of Pseudomonas aeruginosa reaches 98.5%-99.8%, and the inactivation ratio of sphingomonas paucimobilis reaches 99.0%-99.8%.
Embodiment
Technical solution of the present invention is not limited to following cited embodiment, also comprises the arbitrary combination between each embodiment.
Embodiment one: the Pseudomonas aeruginosa of present embodiment based on water supply network growth ring and the ablation method of sphingomonas paucimobilis, implementation procedure is as follows:
Alpha-feooh and H is added in the clean water basin of Urban water supply factory
2o
2, add alpha-feooh that rear concentration is 0.01 ~ 0.05mol/L and mass concentration is the H of 0.1% ~ 0.5%
2o
2, namely complete the deactivation of Pseudomonas aeruginosa based on water supply network growth ring and sphingomonas paucimobilis.
Alpha-feooh and H is added in present embodiment
2o
2after, just effectively can kill the green pseudomonas of copper in drinking water and sphingomonas paucimobilis in 2h.
H in present embodiment clean water basin
2o
2with alpha-feooh effect, the class Fenton body of formation, can effectively kill bacterium in tap water in 2h.
The reaction mechanism of class Fenton's reaction is as follows:
Fe
2++H
2O
2→Fe
3++OH
-+OH
-(1)
Fe
3++H
2O
2→HO
2 -+Fe
2++H
+(2)
OH
-+Fe
2+→Fe
3++OH
-(3)
Fe
3++HO
2 -→Fe
2++O
2+H
+(4)
OH
-+H
2O
2→H
2O+HO
2 -(5)
From formula (5), ferrous ion catalyzing hydrogen peroxide forms hydroxyl radical free radical, and ferrous iron is oxidized to ferric iron.Ferric ion and hydroperoxidation generate ferrous ion, and reaction cycle is carried out.In city water-supply pipe network, without the need to adding other catalyzer, and without harmful by product.
H used in present embodiment
2o
2for colourless transparent liquid, be a kind of strong oxidizer, H
2o
2itself can not burn, but the oxygen of releasing when decomposing can be combustion-supporting consumingly.It can produce the oxygen of significant volume when decomposing, decomposition out of control can cause the pressure explosion of equipment, therefore H in the present embodiment
2o
2add rear reached concentration and need conservative control.
H
2o
2purity is higher, and stability is better, but more responsive to the impurity existed; In low strength range, H
2o
2be harmless, such as mass concentration can be used for oral disinfecting lower than the aqueous solution of 3%.H
2o
2to react with alpha-feooh in growth ring for a long time in pipe network, H during tap water arrival user
2o
2concentration is lower, harmless.And can resolve into water and oxygen in the ordinary course of things, but decomposition rate is extremely slow.H
2o
2transport, without dangerous, is easy to produce, low price.
Embodiment two: present embodiment and embodiment one unlike: in the clean water basin of Urban water supply factory, add alpha-feooh and H
2o
2, add the H of alpha-feooh that rear concentration is 0.02 ~ 0.04mol/L and mass concentration 0.2% ~ 0.4%
2o
2.Other step and parameter identical with embodiment one.
Embodiment three: present embodiment and embodiment two unlike: in the clean water basin of Urban water supply factory, add alpha-feooh and H
2o
2, add the H of alpha-feooh that rear concentration is 0.03mol/L and mass concentration 0.3%
2o
2.Other step and parameter identical with embodiment one.
Following examples are adopted to verify beneficial effect of the present invention:
Embodiment 1:
Based on the Pseudomonas aeruginosa of water supply network growth ring and the ablation method of sphingomonas paucimobilis, implementation procedure is as follows:
Alpha-feooh and H is added in the clean water basin of Urban water supply factory
2o
2, add alpha-feooh that rear concentration is 0.05mol/L and mass concentration is the H of 0.5%
2o
2, namely complete the deactivation of Pseudomonas aeruginosa based on water supply network growth ring and sphingomonas paucimobilis.
Alpha-feooh and H is added in the present embodiment
2o
2after 2h, Pseudomonas aeruginosa is from 2.06 × 10
6cFU/mL drops to 4.35 × 10
4cFU/mL, inactivation ratio reaches 99.8%; Sphingomonas paucimobilis is from 1.2 × 10
4cFU/mL drops to 1 × 10
2cFU/ml, inactivation ratio reaches 99.2%.
Embodiment 2:
Based on the Pseudomonas aeruginosa of water supply network growth ring and the ablation method of sphingomonas paucimobilis, implementation procedure is as follows:
Alpha-feooh and H is added in the clean water basin of Urban water supply factory
2o
2, add alpha-feooh that rear concentration is 0.05mol/L and mass concentration is the H of 0.15%
2o
2, namely complete the deactivation of Pseudomonas aeruginosa based on water supply network growth ring and sphingomonas paucimobilis.
Alpha-feooh and H is added in the present embodiment
2o
2after 2h, Pseudomonas aeruginosa 4.9 × 10
6cFU/mL drops to 7.45 × 10
4cFU/mL, inactivation ratio reaches 98.5%; Sphingomonas paucimobilis 1.2 × 10
4cFU/mL drops to 1.25 × 10
2cFU/ml, inactivation ratio reaches 99.0%.
Embodiment 3:
Based on the Pseudomonas aeruginosa of water supply network growth ring and the ablation method of sphingomonas paucimobilis, implementation procedure is as follows:
Alpha-feooh and H is added in the clean water basin of Urban water supply factory
2o
2, add alpha-feooh that rear concentration is 0.01mol/L and mass concentration is the H of 0.5%
2o
2, namely complete the deactivation of Pseudomonas aeruginosa based on water supply network growth ring and sphingomonas paucimobilis.
Alpha-feooh and H is added in the present embodiment
2o
2after 2h, Pseudomonas aeruginosa is from 2.06 × 10
6cFU/mL drops to 4.35 × 10
4cFU/mL, inactivation ratio reaches 99.8%; Sphingomonas paucimobilis is from 1.65 × 10
7cFU/mL drops to 2.35 × 10
6cFU/ml, inactivation ratio reaches 99.8%.
Claims (3)
1., based on the Pseudomonas aeruginosa of water supply network growth ring and an ablation method for sphingomonas paucimobilis, it is characterized in that its implementation procedure is as follows: in the clean water basin of Urban water supply factory, add alpha-feooh and H
2o
2, add alpha-feooh that rear concentration is 0.01 ~ 0.05mol/L and mass concentration is the H of 0.1% ~ 0.5%
2o
2, namely complete the deactivation of Pseudomonas aeruginosa based on water supply network growth ring and sphingomonas paucimobilis.
2. according to claim 1 a kind of based on the Pseudomonas aeruginosa of water supply network growth ring and the ablation method of sphingomonas paucimobilis, it is characterized in that adding alpha-feooh and H in the clean water basin in Urban water supply factory
2o
2, add the H of alpha-feooh that rear concentration is 0.02 ~ 0.04mol/L and mass concentration 0.2% ~ 0.4%
2o
2.
3. according to claim 1 a kind of based on the Pseudomonas aeruginosa of water supply network growth ring and the ablation method of sphingomonas paucimobilis, it is characterized in that adding alpha-feooh and H in the clean water basin of Urban water supply factory
2o
2, add the H of alpha-feooh that rear concentration is 0.03mol/L and mass concentration 0.3%
2o
2.
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|---|---|---|---|
| CN201510397510.1A CN104944538B (en) | 2015-07-08 | 2015-07-08 | A kind of pseudomonas aeruginosa based on water supply network growth ring and the ablation method for moving Sphingol single-cell less |
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|---|---|---|---|
| CN201510397510.1A CN104944538B (en) | 2015-07-08 | 2015-07-08 | A kind of pseudomonas aeruginosa based on water supply network growth ring and the ablation method for moving Sphingol single-cell less |
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| CN104944538B CN104944538B (en) | 2017-10-03 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106904726A (en) * | 2017-04-18 | 2017-06-30 | 哈尔滨工业大学 | Method using the growth ring catalyzing hydrogen peroxide degraded trichloro ethylene in water supply network and the application in water-supply systems |
| CN106904727A (en) * | 2017-04-18 | 2017-06-30 | 哈尔滨工业大学 | Method and the application in water-supply systems that Fenton-type reagent is degraded to tetrachloro-ethylene are constituted based on growth ring and hydrogen peroxide |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1887735A (en) * | 2006-07-21 | 2007-01-03 | 中山大学 | Aquatic raising waste water sterilizing method |
| CN1899974A (en) * | 2006-07-21 | 2007-01-24 | 中山大学 | Sterilizing method for hospital waste water |
-
2015
- 2015-07-08 CN CN201510397510.1A patent/CN104944538B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1887735A (en) * | 2006-07-21 | 2007-01-03 | 中山大学 | Aquatic raising waste water sterilizing method |
| CN1899974A (en) * | 2006-07-21 | 2007-01-24 | 中山大学 | Sterilizing method for hospital waste water |
Non-Patent Citations (1)
| Title |
|---|
| 朱晓萌: "纳米改性α-FeOOH的制备及其吸附、Fenton降解水中亚甲基蓝的研究", 《中国优秀硕士学位论文全文数据库 工程科技I辑》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106904726A (en) * | 2017-04-18 | 2017-06-30 | 哈尔滨工业大学 | Method using the growth ring catalyzing hydrogen peroxide degraded trichloro ethylene in water supply network and the application in water-supply systems |
| CN106904727A (en) * | 2017-04-18 | 2017-06-30 | 哈尔滨工业大学 | Method and the application in water-supply systems that Fenton-type reagent is degraded to tetrachloro-ethylene are constituted based on growth ring and hydrogen peroxide |
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| CN104944538B (en) | 2017-10-03 |
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